Section 03: FUEL SYSTEM
PA1562
16
NOTE
Burning Low Sulfur Diesel fuel (instead of
ULSD fuel) in 2007 and later model year
diesel engines is illegal and punishable with
civil penalties.
NOTE
Engine and vehicle manufacturers expect
ULSD fuel to be fully compatible with the
existing fleet, including 2006 and earlier model
year vehicles. In some instances, the
introduction of ULSD fuel to older vehicles
may affect fuel system components or loosen
deposits in fuel tanks. As part of a good
maintenance program, owners and operators
of existing cars, trucks and buses are
encouraged to monitor their diesel-powered
vehicles closely for potential fuel system leaks
or premature fuel filter plugging during the
change-over to ULSD fuel.
NOTE
Like Low Sulfur Diesel fuel, ULSD fuel
requires good lubricity and corrosion inhibitors
to prevent unacceptable engine wear. As
necessary, additives to increase lubricity and
to inhibit corrosion will be added to ULSD fuel
prior to its retail sale.
7.2 BLENDING
Only ultra low sulfur kerosene – No.1 diesel with
no more than 15ppm sulfur may be blended with
ULSD fuel to improve cold weather
performance. With so many kerosene
formulations on the market, care must be taken
to select kerosene with a maximum of 15ppm
sulfur.
Blend rates remain the same as with Low Sulfur
Diesel fuel.
7.3 BIODIESEL FUELS
ULSD-B5 biodiesel may be used. B5 tells you
the percentage of biodiesel mixed in with ULSD.
B5 is 5% biodiesel and 95% ULSD.
Fuel used must meet engine manufacturer’s
specification for biodiesel fuel. For Detroit Diesel
engines refer to “Diesel Fuel Specifications” as
stated in DDC publication 7SE270 L
UBRICATING
OIL, FUEL, AND FILTERS. Similarly for Volvo
engines.
Biodiesel fuels are alkyl esters of long chain fatty
acids derived from renewable resources. Detroit
Diesel highly recommends biodiesel fuels made
from soybean or rapeseed oil through the proper
transesterification reaction process. Other
feedstock source of biodiesel fuels such as
animal fat and used cooking oils are not
recommended by Detroit Diesel. Biodiesel fuels
meeting ASTM D6751 specification and from
BQ-9000 accredited producer, prior to blending
can be mixed up to 5% maximum by volume in
petroleum diesel fuel. The resulting mixture must
meet the fuel properties listed in Table 5-1 (see
Detroit Diesel publication 7SE270 L
UBRICATING
OIL, FUEL, AND FILTERS.) and ASTM D975
specification. Failures attributed to the use of
biodiesel fuel will not be covered by Volvo,
Detroit Diesel or Prevost product warranty. Also,
any engine performance problem related to the
use of biodiesel fuel would not be recognized
nor considered as Volvo, Detroit Diesel or
Prevost’s responsibility.
8. AIR CLEANER (DRY TYPE)
The vehicle is equipped with a dry-type
replaceable element air cleaner, located in the
engine compartment. Access the air cleaner
through the engine R.H. side door. Engine air
enters the air cleaner through (2) two intake
ducts located just above engine side doors. It
then flows through a pre-cleaner and finally
through the air cleaner. The pre-cleaner
removes dust and moisture by means of a
discharge tube at the bottom of the element. It is
in series with a replaceable impregnated paper
filter element (air cleaner).
8.1 PRE-CLEANER SERVICING
MAINTENANCE
The pre-cleaner is designed to be
self-cleaning; however, it should be inspected
and any accumulated foreign material removed
during the periodic replacement of the
impregnated paper filter element.
8.2 AIR CLEANER SERVICING
Stop the engine, open the R.H. side engine
compartment door, and loosen the wing nut
retaining the air cleaner element to the air
cleaner. Remove the element by pulling on the
handle in the center of the air cleaner element.
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